Geomechanics.io

  • Free Tools
Sign UpLog In
AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy

Geomechanics.io

Geomechanics, Simplified.

© 2025 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects
    Product
    Sustainability

    Epiroc Minetruck MT66 S eDrive at Granny Smith: trial insights for mine planners

    December 22, 2025|

    Reviewed by Joe Ashwell

    Epiroc Minetruck MT66 S eDrive at Granny Smith: trial insights for mine planners

    First reported on International Mining – News

    30 Second Briefing

    Epiroc’s 66 t Minetruck MT66 S eDrive has begun a six‑month performance trial at Gold Fields’ Granny Smith mine, hauling ore at the Wallaby underground operation in Western Australia’s Laverton District. The diesel-electric truck is being benchmarked in Granny Smith’s existing truck fleet under real production conditions, with Epiroc specialists stationed on site for the full trial period. Outcomes will focus on fuel burn, cycle times and maintenance behaviour in deep-level, long‑haul stoping, informing future fleet replacement and electrification strategies.

    Technical Brief

    • Diesel-electric drivetrain allows mechanical decoupling of engine and wheel torque delivery.
    • Electric traction is expected to reduce geartrain shock loads on declines and switchbacks.
    • Onboard power electronics manage engine loading, targeting lower specific fuel consumption per tonne‑km.
    • Regenerative braking potential on long downhill hauls could reduce service brake wear and heat load.
    • Epiroc specialists embedded on site will fine‑tune duty cycles, operator settings and maintenance intervals.
    • Trial data will inform compatibility with existing underground infrastructure, including ramp gradients and turning bays.
    • Outcomes may guide other deep, long‑haul mining operations considering diesel‑electric transition before full BEV adoption.

    Our Take

    Within our 433 Mining stories, relatively few gold operations in Western Australia are trialling 60 t‑plus underground trucks, so a 66 t eDrive unit at Granny Smith signals that large‑scale electrified haulage is moving beyond early adopters in Canada and Scandinavia.

    Epiroc’s recent product coverage in our database – from the COPROD 89 drilling system to long‑running Pit Viper rigs – shows the company pushing higher‑capacity, lower‑fuel‑burn equipment, and the MT66 S eDrive trial fits that pattern of targeting energy efficiency rather than just swapping diesel for battery power.

    For Gold Fields’ Granny Smith and Wallaby orebodies, a six‑month performance trial at this payload class is long enough to generate real data on power‑draw profiles and heat rejection in deep stopes, which will materially influence future ventilation and electrical reticulation designs if they scale up eDrive fleets across the eastern Goldfields.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Hillgrove underground restart: stability and safety takeaways for mine engineers
    Mining
    about 12 hours ago

    Hillgrove underground restart: stability and safety takeaways for mine engineers

    Larvotto Resources has begun underground development at its Hillgrove antimony–gold project in New South Wales, re‑opening historical workings to access high‑grade antimony and refractory gold mineralisation. The restart involves rehabilitating existing declines and levels, upgrading ground support, and re‑establishing services to support modern mechanised mining fleets. For geotechnical and mining teams, early focus will be on re‑assessing legacy excavation stability, water inflows and ventilation capacity to safely transition Hillgrove back into sustained underground production.

    Fortescue–TISCO green iron pact: flowsheet and ore-spec lessons for miners
    Mining
    about 12 hours ago

    Fortescue–TISCO green iron pact: flowsheet and ore-spec lessons for miners

    Fortescue has signed a technology development agreement with Taiyuan Iron and Steel (TISCO), a subsidiary of China Baowu, to jointly explore green iron production routes using Fortescue’s ore and TISCO’s low‑carbon steelmaking capability. The partnership centres on piloting and scaling technologies such as hydrogen‑based direct reduction and renewable‑powered electric furnaces within Baowu’s existing integrated steel complexes. For miners and steel producers, the move signals growing demand for ore specifications, beneficiation strategies and process control tailored to low‑carbon ironmaking flowsheets in China.

    Liontown’s fully underground Kathleen Valley: design and risk notes for mine engineers
    Mining
    about 12 hours ago

    Liontown’s fully underground Kathleen Valley: design and risk notes for mine engineers

    Liontown Resources has completed three years of open pit mining at its Kathleen Valley lithium project in Western Australia and is now transitioning fully to underground operations. The mine is shifting to long-term underground production targeting high-grade spodumene beneath the existing pits, supported by the Dragonfly accommodation village constructed to house the expanded workforce. The move concentrates activity on deeper ore zones, with implications for ground control, ventilation design and paste backfill planning in a hard-rock lithium setting.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.